A physician orders amoxicillin 250mg three times daily for a patient who weighs 66 pounds. The medication available is amoxicillin oral suspension 400mg/5mL. How many milliliters should the medical assistant administer per dose?
2.5mL
5mL
10mL
3.125mL
The correct dosage is calculated using the concentration of the suspension and the doctor's order for the patient's medication. Given the prescribed dose of 250mg and the available concentration of 400mg/5mL, a simple ratio calculation is used to determine the correct volume to administer: (250mg) / (400mg) = (X mL) / (5 mL) which yields X = (250mg * 5mL) / (400mg), resulting in X being 3.125mL per dose.
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